How to Upgrade GNOME 3.12 to GNOME 3.14 in Ubuntu GNOME 14.10
This tutorial will describe you how to upgrade gnome 3.12 to gnome 3.14 in Ubuntu GNOME 3.14. by default Ubuntu GNOME 14.10 utopic unicorn shipped with GNOME 3.12, but, Ubuntu GNOME user can install the latest GNOME 3.14 from PPA.
As we know, GNOME 3.14 the latest version of GNOME 3 brings with many updates and improvement such as : New animations in the Activities Overview, along with new window animations, automatic handling for Wi-Fi hotspots that require you to login (so called “captive portals”)
GNOME Development team also redesigned weather application, which uses geolocation to show the weather for your current location, Support for browsing Google pictures in GNOME Photos, Improved touchscreen support, with multi-touch gestures for both the system and applications. and many more which can be found in the Gnome 3.14 release notes.
Install GNOME 3.14 in Ubuntu GNOME 14.10 Utopic Unicorn
sudo add-apt-repository ppa:gnome3-team/gnome3-staging
sudo add-apt-repository ppa:gnome3-team/gnome3
sudo apt-get update
sudo apt-get dist-upgrade
If you get an error message similar to “GdkPixbuf-WARNING **: Cannot open pixbuf loader module file ‘/usr/lib/x86_64-linux-gnu/gdk-pixbuf-2.0/2.10.0/loaders.cache’: No such file or directory“ during installation process, Fix this problem by install package “libgdk-pixbuf2.0-dev”.
sudo apt-get install libgdk-pixbuf2.0-dev
Then run execute the following commands:
in Ubuntu GNOME 14.10 32 Bit :
gdk-pixbuf-query-loaders > /usr/lib/i386-linux-gnu/gdk-pixbuf-2.0/2.10.0/loaders.cache
in Ubuntu GNOME 14.10 64 Bit :
gdk-pixbuf-query-loaders > /usr/lib/x86_64-linux-gnu/gdk-pixbuf-2.0/2.10.0/loaders.cache
Reboot your system.
GNOME 3.14 not install GNOME application by default in Ubuntu GNOME 14.10, you can install it with the following command:
sudo apt-get install polari gnome-sound-recorder bijiben gnome-clocks gnome-music gnome-photos gnome-boxes
Screenshot GNOME 3.14 in Ubuntu GNOME 14.10
How to Revert/Uninstall Ubuntu GNOME 3.14 from Ubuntu GNOME 14.10
If you want to uninstall GNOME 3.14 and revert to GNOME 3.12. you can remove GNOME 3 and GNOME 3 Staging PPAs from you system with command ppa-purge. it also automatically remove GNOME 3.14 and dependencies from you system. you can doing it with the following command:
sudo apt-get install ppa-purge
sudo ppa-purge ppa:gnome3-team/gnome3
sudo ppa-purge ppa:gnome3-team/gnome3-staging